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first experiment cmplog

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This commit is contained in:
Andrea Fioraldi
2020-01-17 16:39:05 +01:00
parent bd58094dbc
commit 55e9297202
12 changed files with 1197 additions and 7 deletions
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28
src/afl-sharedmem.c
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@ -35,6 +35,7 @@
#include "alloc-inl.h"
#include "hash.h"
#include "sharedmem.h"
#include "cmplog.h"
#include <stdio.h>
#include <unistd.h>
@ -68,8 +69,12 @@ char g_shm_file_path[L_tmpnam];
/* ========================================= */
#else
static s32 shm_id; /* ID of the SHM region */
static s32 cmplog_shm_id;
#endif
int cmplog_mode;
struct cmp_map* cmp_map;
/* Get rid of shared memory (atexit handler). */
void remove_shm(void) {
@ -91,6 +96,8 @@ void remove_shm(void) {
#else
shmctl(shm_id, IPC_RMID, NULL);
if (cmplog_mode)
shmctl(cmplog_shm_id, IPC_RMID, NULL);
#endif
}
@ -148,7 +155,15 @@ void setup_shm(unsigned char dumb_mode) {
shm_id = shmget(IPC_PRIVATE, MAP_SIZE, IPC_CREAT | IPC_EXCL | 0600);
if (shm_id < 0) PFATAL("shmget() failed");
if (cmplog_mode) {
cmplog_shm_id = shmget(IPC_PRIVATE, sizeof(struct cmp_map), IPC_CREAT | IPC_EXCL | 0600);
if (cmplog_shm_id < 0) PFATAL("shmget() failed");
}
atexit(remove_shm);
shm_str = alloc_printf("%d", shm_id);
@ -161,8 +176,21 @@ void setup_shm(unsigned char dumb_mode) {
if (!dumb_mode) setenv(SHM_ENV_VAR, shm_str, 1);
ck_free(shm_str);
if (cmplog_mode) {
shm_str = alloc_printf("%d", cmplog_shm_id);
if (!dumb_mode) setenv(CMPLOG_SHM_ENV_VAR, shm_str, 1);
ck_free(shm_str);
}
trace_bits = shmat(shm_id, NULL, 0);
if (cmplog_mode)
cmp_map = shmat(cmplog_shm_id, NULL, 0);
if (!trace_bits) PFATAL("shmat() failed");